01 - Line a large baking tray or flat surface with parchment paper to prevent sticking during assembly.
02 - Finely crush Oreos in a food processor. Transfer to a bowl and add powdered sugar, melted butter, and softened cream cheese. Mix thoroughly until a thick, sticky dough forms.
03 - Place Oreo mixture between two sheets of parchment paper. Roll into a rectangle approximately 1/2 inch thick, ensuring even thickness throughout.
04 - In a chilled bowl, beat heavy whipping cream with powdered sugar and vanilla extract until stiff peaks form. Gently fold in food coloring until uniformly tinted in your desired Halloween shade.
05 - Spread colored whipped cream evenly over rolled Oreo base, leaving a 1-inch border along one long edge. This clean edge will help seal the roll.
06 - Using parchment paper for guidance, carefully roll mixture into a tight log starting from the long edge without the border. Place seam side down on prepared surface.
07 - Refrigerate for at least 1 hour until firm. The roll needs time to set properly for clean slicing.
08 - Drizzle with melted chocolate, sprinkle Halloween decorations, and attach candy eyes if using. Slice into 1-inch portions with a sharp knife and serve cold.